Save a few watts per device making the client-side code a bit more efficient.
Spend Gigawatts running data centres for LLMs.
Spend Gigawatts running data centres for LLMs.
2) There exist many, many more client devices than datacenters. And
3) Expect software on client devices to be generally less optimized than software deployed in datacenters.
In other words: measure, and do the math. And ofc Jevons' paradox may apply.
But anyway it'll devolves pretty quickly into a fallacy where you shouldn't do anything because your neighbour is a bigger problem (forget the name).